From Stanley, this tumbler features:  These bold, colorful tumblers are made to keep you hydrated in a fully functional style. Ideal for car commutes or workouts at home, it has a built-in flip straw for easy and effortless sipping. Snap it shut and the double-wall vacuum insulation will keep your drink fully leakproof and extra cold for hours. It fits comfortably in your vehicle’s cup holder (treadmills and spin cycles, too!), and the folding handle lets you quickly grab and go.  Features: Keeps drinks cold for 12 hours Keeps drinks iced for 2 days 18/8 stainless steel, BPA-free Double-wall vacuum insulation Leakproof flip straw Easy-to-carry handle Car cup holder compatible Dishwasher safe Measures approx. 3.5" L x 4.1" W x 9.8" H Capacity 30-oz. Imported.